Improvement in apparatus for raising weights



2 Sheets-Sheet 1.

J. PICKERING. .Apparatus for Raising Weights.

Patented Dec. 1, 1868.

erazor 2 SheetsSheet 2. J. PICKERING.

Apparatus for Raising Weights. No. 84,577. Patented Dec. 1, 1868.

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UNITED. STATES PATENT OEEIoE.

JONATHAN PIGKERING, OF STOCKTON-ON-TEES, ENGLAND.

IMPROVEMENT -IN'APPARATUS FOR RAISING WEIGHTS.

I Specification forming part of Letters Patent No. 84,577, datedDecember 1, 1868.

' Be it .known that I, JONATHAN PIOKERING, of Stockton-on-Tees, in thecounty of Durham, England, have invented certain new and usefulImprovements in Devices for Raising Weights, and other purposes; and Ido hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making a part of this specification, and to the letters of referencemarked thereon, like letters indicating like parts wherever they occur.

' To enable others skilled in the art to make and use my invention, Iwill proceed to describe it.

My invention consists in arranging and con-. structing an improvedapparatus for reducing the speed of motion less than the speed by whichit is actuated, and is applicable to all machines where power isrequired.

I make it in the following manner: I use a common chain-pulley, withsunken chamber in the periphery, to receive the links of an endlesschain. On one side of this chain-pulley I fix a crank-pin or eccentric,and upon this crank-pinor eccentric I fit a toothed wheel, which is madeto revolve loosely upon the said crank-pin or eccentric, and is made torevolve with the chain-pulley also, thus describing the sun-and-planetmotion. This planet toothed wheel is surrounded with twointernal-toothed wheels, which are each half the breadth of the formerwheel, and are the size of the orbit of the inner planet-wheel. Thesetwo orbit-wheelsI make with one or more teeth, different in number, buteach fitted so as to allow the inner planet-wheel to work therein. Isecure one of these orbit-wheels to the frame-work of the apparatus. Theother runs loose upon the axle. This axle is made to pass through theframe. When I use this improved purchase to a pulley-block, I alsoattach a second chain-pulley on the axle, and fix it to the looseorbit-wheel. A chain is placed over this second chain-pulley, which.will be used to raise weights.

The power is obtained by the motion communicated to the first-namedchain-pulley running on the axle, carrying round with it the toothedplanet-wheel, which gears into the aforesaid orbit-wheels. Thedifference in the number of teeth in the orbit-wheels gives acorresponding reduced speed to the secondchain-pulley.

For a hoist, I use a, drum of any required length, in lieu of the secondchain -pulley. This drum will wind on the chain or rope in hoisting.Thus I make a combination of hoistin g-block and winch. I apply thislatter modification to a wringing-machine; but insteadof the aforesaiddrum, I use the roller of the machine; and instead of the firstchain-pulley, I fix to the planet-wheels eccentric or crankaxle anordinary crank-handle;

I apply the apparatus to a screw lifting-jack in a similar way, onlythat in the place of the second chain-pulley I. fix a bevel-pinionwheel,

which works into another bevel-toothed wheel. This wheel, being attachedto the screw-nut, forces it round, and so lifts the screw.

For the application of. this apparatus to a crane, lathe, or othermachinery, I make the two orbit-wheels, if required, with teeth outsidethe periphery, instead of the internaltoothed wheels heretofore named. Isecure one orbit-wheel to the frame, and the other to the axle intendedto be driven. The planetwheel is made to work into the orbit-wheelsexternally, being kept at proper position with an arm working on thecenter axle, through which the crank-pin is fixed. I vary the sizes ofeach of the orbit-wheels, if needful to do so, with the planet-wheel tofit, or multiply of the numher to obtain more/speed. This is simply amodification of the internal arrangement. 7

Having explained the nature of my invention, I will proceed to describe,with reference to the accompanying drawings, the manner in which thesame is to be performed.

Figure 1, Sheet 1, represents a perspective view of one application ofthis invention to the raising of weights. Fig. 2 is an end elevation;and Figs. 3, 4, 5, and 6 represent, respectively, the internalarrangement and general construction of the same.

The same letters indicate the same parts throughout.

0 is a chain-pulley, made with sunken chambers in its periphery, toreceive the links of an endless chain, 0, upon which chain-pulley iscast an eccentric, e, which carries a planet toothed wheel or pinion,This wheel or pinion is allowed to revolve loosely on the eccentric e,and gears into the two orbit or internal-toothed wheels, f and g, eachof which is half the breadth of the pinion d. The orbitwheel f is fixedto the frame-work h by the bolts 3 3 so that it has no motion whatever;but the orbit-wheel g, which has one or more teeth different in numberthan the orbit-wheel f, is loose, so that it revolves on the bolt oraxle i, which passes through the frames h and h, and carries thebefore-mentioned chainpulley c and eccentric 0. Upon the orbit orinternal-toothed wheel 9 is attached a chainpulley, k, with sunkenchambers in the periphery, to receive the links of the liftingchain 1,which chain is furnished with a hook at each end, so that there is nolowering required for fresh lifts. The suspender-hook m is attached tothe block by a bolt, n, passing through it, which also passes throughthe frames h and h, and a projection cast on the stationary orbit-wheelf, thereby securing all firmly together.

Fig. 9, Sheet 2, is a longitudinal elevation, partly in section,representing a hoist accordin g to my invention, 0 being thechain-pulley, through which the power is transmitted from theendless-chain wheel 0 to the eccentric e, on which eccentric revolvesthe planet toothed wheel or pinion d. This pinion gears into the twoorbit-wheels f and g, each of which is half the breadth of the pinion d.The stationary orbit-wheel f is secured to the frame h by bolt y. Therotatory orbit-wheel g, which has one or more teeth different innumberfrom the orbitwheel f, is fixed on the drum or winding-barrel k,round which the lifting chain or rope is wound. The drum to is fastenedto the frames h and h. This latter modification may be applied to anordinary crab-winch, as shown by dotted lines. Instead of thechain-pulley c, I make a hollow cylinder, to fit the drum-shaft i,sufficiently long that it passes through the boss of the frame h andprojects outside, to fix on an ordinary crank-handle. On the other endof this cylinder is attached the crank c.

Fig. 10 is a longitudinal elevation, partly in section, and Fig. 11 anend view, of the application of my invention, applied to a man gling orwringing machine.

0 is an ordinary crank-handle fitted onto the spindle c, which passesthrough the boss of the stationary orbit-wheel f. On the other end ofthis spindle is an eccentric, e, which carries the planet wheel orpinion d. This pinion gears into the orbit-wheels f and g. Theorbit-wheel f is secured to the frame of the machine by bolts 1 y, andis a support to the spindle c. The rotatory orbit-wheel ghas a toothedwheel, k, cast on one side, which is keyed on the spindle of one of therollers. This wheel gears into a similar toothed wheel, 7:, secured onthe spindle of the other roller.

Figure 12, Sheet 2, represents a vertical section of the application ofmy invention by a screw lifting-jack.

c is an ordinary jack-handle, which is fitted on the spindle end 0. Uponthis spindle is the eccentric e, carrying the planet wheel or pinion d,which gears into the two orbit-wheels f and g. The stationaryorbit-wheel f is fixed to the jack by one or more bolts, y. ()n the backof the rotatory orbit-wheel g is casta bevel-wheel, k. This wheel gearsinto another bevel-wheel, l, which also forms the nut through which thescrew m works. The bevelwheel. or nut l' is supported by an iron box, n,a chamber being cut out of the jack to receive this box, the same boxhaving provision for receiving and carrying one end of the spindle c, asshown at w. The spindle is supported at the other end by the stationaryorbit-wheel f.

Fig. 7, Sheet 2, is a longitudinal section, and Fig. 8 a front-endelevation, of the application of my invention to an ordinaryturning-lathe.

On the hollow shaft 0 are secured the cone or belt pulleys c and thecrank Z. Inthe end of this crank 1 fix a bolt or pin, e, which carriesthe planet toothed wheel or pinion d, which is allowed to rotate on thepinion c. This pinion gears into the wheels f and g externally. Thestationary wheel f is secured to the lathehead by the bolts y y, and therotatory wheel g is secured to the lathe-spindle i, which passes throughand on which the hollow spindle c rotates. The lathe-spindle 'i and thehollow or cone spindle 0' may be made to rotate simultaneously in thefollowing manner: The crank Z is driven by a sliding key sunk into thecylinders 0 and secured in its place by a setscrew, 70. Slack theset-screw, and slide the crank back (on the key) toward the cone untilthe wheel or pinion d gears only into the wheel g, which is secured onthe lathe-spindle. Then connect the crank l, hollow cylinder 0, andlathe-spindle Z by the set-screws m m. (Shown in Fig. 8.)

It should be understood that I am aware that machines for raisingweights have been used before, and a patent was obtained by Joseph Jewsbury, in England, on or about November 20, 1862, No. 3,115 and therewas another patent, obtained by William Eades and William Thomas Eades,in England, on or about June 22, 1866, No. 1,672; but in both thesepatents an external toothed wheel was used, geared into aninternal one.The external toothed wheel is kept in guides, so that it has no circularmotion, but is free to work laterally. Neither of these apparatus has afixed wheel similar to the wheel f to act as a fulcrum, giving leveragefor the pinion (I, as described in my specification.

Having thus described my invention, what I claim, is

1. An apparatus for raising weights and for other purposes, consistingof a frame, h, having mounted therein, on an axle or shaft, 1', a

chain-pulley, 0, provided with an eccentric or pin, 0, having aplanet-wheel, d, thereon, gearing into and rotated by a stationarywheel, f, and also gearing into' and turning a loose wheel, 9, thestationary wheel acting as a fulerum for the planet-wheel in givingmotion to In witness whereof I, the said JONATHAN the loose wheel, allconstructed and arranged PIGKERING, have hereunto set my hand this tooperate as herein described. 4th day of July, in the yearof our Lord1868.

2. The chain-pulley c with its eccentric e, 7

having mounted thereon a planet-wheel, d, in JONATHAN PIOKERING'combination with a fixed wheel, f, or their Witnesses:

equivalents, for giving motion to a loose J OHN GOLLYER, Tinner,

wheel, g, or its equivalent, when constructed Stockton-on-Tees, Durham,England.

and arranged to operate as herein described, RIGHJ). AVISON,Law-Stationer,

and for the purposes set forth. Stockson-on-Tees, Durham, England.

